Methods for the microsampling and high-precision analysis of strontium and rubidium isotopes at single crystal scale for petrological and geochronological applications

Charlier, B. L.; Ginibre, C.; Morgan, D. J.; Nowell, Geoff; Pearson, D. Graham; Davidson, Jon P.; Ottley, Christopher J.

doi:10.1016/j.chemgeo.2006.02.015

Cited by 259 publications

(199 citation statements)

References 41 publications

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“…The samples were loaded onto degassed Re filament following the procedure described by Charlier et al (2006). Sample filaments were heated to ~1460°C and the Sr beam was tuned to obtain a stable signal of ~8 V of 88 Sr.…”

Section: Sr Isotope Analysismentioning

confidence: 99%

The Late Cryogenian Warm Interval, NE Svalbard: Chemostratigraphy and genesis

Fairchild

Bonnand²,

Davies

et al. 2016

Precambrian Research

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms At the base of E3, interstratification of cap carbonate with ice-rafted and redeposited glacial sediments occurs. Early diagenetic stabilization of carbonate mineralogy from a precursor, possibly ikaite, to calcite or dolomite is inferred. E3 is predominantly dolomitic silt-shale, with sub-millimetre lamination, lacking sand or current-related sedimentary structures. Thin fine laminae are partly pyritized and interpreted as microbial mats. Dolomite content is 25-50%, with δ 13 C values consistently around +4‰, a value attributed to buffering by dissolution of a precursor metastable carbonate phase. Local calcite cement associates with low δ 13 C values. The carbonates form silt-sized, chemically zoned rhombic crystals from an environment with dynamically changing Fe and Mn. Three-dimensional reconstructions of cm-scale disturbance structures indicate that they represent horizontally directed sock-like folds, developed by release of overpressure into thin surficial sediment overlying an early-cemented layer.A shoaling upwards unit near the top of E3 displays calcium sulphate pseudomorphs in dolomite in the north, but storm-dominated limestones in the south, both being overlain by peritidal oolitic dolomites, exposed under the succeeding Wilsonbreen glacial deposits. There is no Trezona δ 13 C anomaly, possibly implying top-truncation of the succession.Regular 0.5 m-scale sedimentary rhythms, reflecting subtle variations in sediment texture or composition occur throughout E3 and are interpreted as allocyclic. They are thought to be mainly primary in origin, locally modified slightly during early diagenetic cementation. Rhythms are proposed to represent ca. 18 kyr precession cycles, implying 6-8 Myr deposition between glaciations.

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Section: Sr Isotope Analysismentioning

confidence: 99%

The Late Cryogenian Warm Interval, NE Svalbard: Chemostratigraphy and genesis

Fairchild

Bonnand²,

Davies

et al. 2016

Precambrian Research

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“…The Parafilm™ was melted onto the filament surface, leaving a gap to constrain the sample droplet to the centre of the filament. The TaF5 activator (0.7µL) (Charlier et al, 2006) and the sample (taken up in 1µL of 16M HNO 3 ) were sequentially loaded into the gap. Once the sample was dry, the current was progressively increased to burn off the Parafilm™ and until a dull red glow was achieved for a few seconds.…”

Section: Micro-sr Isotope Analysesmentioning

confidence: 99%

“…Micromilling and extraction of strontium at the nanogram level were carried out following the method proposed by Charlier et al (2006) at the Department of Earth Sciences, University of Durham (UK). Sample loading and mass spectrometry were executed at the Department of Earth Sciences, University of Florence (IT).…”

Section: Micro-sr Isotope Analysesmentioning

confidence: 99%

Crystal recycling in the steady-state system of the active Stromboli volcano: a 2.5-ka story inferred from in situ Sr-isotope and trace element data

Francalanci

Avanzinelli

Nardini

et al. 2011

Contrib Mineral Petrol

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The nal publication is available at Springer via http://dx.doi.org/10.1007/s00410-011-0661-0Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. 3 Abstract In-situ

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“…Electro-Scientific Industries (New-Wave Research Division), which manufacture the UP213 laser used by Richards et al (2008), also manufacture a Micromill that uses almost identical control software to the UP-series lasers allowing it to be positioned with the same spatial resolution. It is used to excavate material in the form of a fine powder or slurry from a sample using a fine-tipped mill/drill bit (Charlier et al, 2006). The sample powder can then be dissolved and processed through conventional Sr pre-concentration columns and analysed by either of the existing 'traditional methods' referred to by Richards et al (2008).…”

Section: Spatial and Compositional Resolution Of Analysesmentioning

confidence: 99%

Comments on Richards et al., Journal of Archaeological Science 35, 2008 “Strontium isotope evidence of Neanderthal mobility at the site of Lakonis, Greece using laser-ablation PIMMS”

Nowell

Horstwood

2009

Journal of Archaeological Science

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Abstract.We present an evaluation of the laser ablation Sr isotope data reported by Richards et al.(2008) for a Neanderthal tooth recovered from a site in Greece. Based on an alternative and analytically more robust method of correcting for isobaric interferences present during the analysis the tooth appears to be isotopically homogenous and within uncertainty of the value for modern seawater. If this is the case then contrary to the migration model proposed by Richards et al. (2008) the Neanderthal individual may have actually been a coastal dweller and lived within the vicinity of the find site.

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Methods for the microsampling and high-precision analysis of strontium and rubidium isotopes at single crystal scale for petrological and geochronological applications

Cited by 259 publications

References 41 publications

The Late Cryogenian Warm Interval, NE Svalbard: Chemostratigraphy and genesis

The Late Cryogenian Warm Interval, NE Svalbard: Chemostratigraphy and genesis

Crystal recycling in the steady-state system of the active Stromboli volcano: a 2.5-ka story inferred from in situ Sr-isotope and trace element data

Comments on Richards et al., Journal of Archaeological Science 35, 2008 “Strontium isotope evidence of Neanderthal mobility at the site of Lakonis, Greece using laser-ablation PIMMS”

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